89. A recent national study of the public schools shows that there are now one microcomputer for every thirty-two pupils, four times as many than there were four years ago.
(A) there are now one microcomputer for every thirty-two pupils, four times as many than there were
(B) there is now one microcomputer for every thirty-two pupils, four times as many than there were
(C) there is now one microcomputer for every thirty-two pupils, four times as many as there were（前面是is,这儿为什么用were?）
(D) every thirty-two pupils now have one microcomputer, four times as many than there were
(E) every thirty-two pupils now has one microcomputer, four times as many as（为什么这儿不是省略？）
Choices A, B, and C appropriately use the construction "one X for every thirty-two Y's" to describe the ratio of computers to pupils, but only C, the best answer, is error-free. In A, are does not agree with the subject, one microcomputer; furthermore, in A, B, and D, than is used where as is required. Choices D and E reorder and garble the "one X ..." construction, making four times as many refer illogically to pupils.
顶一下
BTW， (E) every thirty-two pupils now has one microcomputer, four times as many as 中four times as many as 为什么不是对microcomputer的一种修饰呢？
回答1楼的问题：英语中只有one for every这样的比率才用单数，其他比率通通用复数。在本题中，比较的基数一样都是32个学生，现在是拥有一台电脑，那以前就只能是1以外的数字，所以必然是were。
回答2楼的问题：比较状语从句的逻辑主语为主句主语。这里主句主语是pupils。
回答1楼的问题：英语中只有one for every这样的比率才用单数，其他比率通通用复数。在本题中，比较的基数一样都是32个学生，现在是拥有一台电脑，那以前就只能是1以外的数字，所以必然是were。
回答2楼的问题：比较状语从句的逻辑主语为主句主语。这里主句主语是pupils。
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